-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > Dear PIC List: > > My application is strictly I2C, one master, many slaves > 100 (+/-) and slow data rates. Yowza!! 100 slaves? Well, I can give you one recommendation right away. IIRC the maximum recommended bus length is 10cm. If you have that many devices attached, you're going to need some repeater ICs. There's a 5-port I2C hub made by Philips that may be helpful to you. > After researching the volumes of online information, > I'm no closer to choosing a PIC mu-C than I was three > months ago! > > Any suggestions? > > Ideally, the chip will be supported by a MicroChip (R) > development environment and programmer. Any microchip MCU that has I2C support should fit that bill. I'd say for ease of coding, you can go with an 18F part, though if you know you don't need all that power, you can drop to a 16F part. If all you're doing with the master is operating slaves, then you should be able to drop to a 16F876 or similar, unless code size or RAM are limiting factors. Well, that's all I can come up with. Hope it helps. - --Brendan -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.8 for non-commercial use iQA/AwUBPVxGgQVk8xtQuK+BEQJgXwCaA9gzkn+1vifQorzjRw9tTXR2JbgAoIH0 QwYxZTt/d4bfViZBG06XH2bY =hzAA -----END PGP SIGNATURE----- -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads